Mazda 3 Service Manual: Water Pump Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING:
-
Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system.
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Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap. Wrap a thick cloth around it and slowly turn it counterclockwise 2.5 turns. Step back while the pressure escapes.
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When you are sure all the pressure is gone, turn the cap using the cloth, and remove it.
NOTE:
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Coolant may have accumulated depending on how many years the water pump has been in use. However, this does not indicate a malfunction if the accumulated coolant does not cover the vapor escape hole.
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the plug hole plate..
4. Remove the aerodynamic under cover No.2 and splash shield as a single unit..
5. Drain the engine coolant..
6. Loosen the water pump pulley bolts before removing the drive belt.
7. Remove the generator drive belt with the A/C drive belt still installed and set it out of the way. (MZR 2.0).
8. Remove the drive belt. (MZR 2.5).
9. Remove the drive belt auto tensioner. (MZR 2.0).
10. Remove the idler pulley. (MZR 2.5).
11. Remove in the order indicated in the table.
12. Install in the reverse order of removal.
13. Refill the engine coolant..
14. Inspect for engine coolant leakage..
|
1 |
Water pump pulley |
|
2 |
Water pump |
|
3 |
O-ring (See O-ring Installation Note.) |
O-ring Installation Note
1. Apply engine coolant to a new O-ring.
2. Install the O-ring.
Shroud Panel Removal/Installation
CAUTION:
Because the shroud panel is installed to the bumper reinforcement, support
the shroud panel using a jack before removing the bumper reinforcement so as
not to apply excessive fo ...
Thermostat Inspection [Mzr 2.0, Mzr 2.5]
1. Remove the thermostat..
2. Visually check that the thermostat valve is closed.
3. Place the thermostat in water.
WARNING:
During inspection, the thermostat and water are extremely hot ...
Other materials:
Locking, Unlocking with Door-
Lock Knob
Operation from inside
To lock any door from the inside, press the
door-lock knob.
To unlock, pull it outward.
This does not operate the other door locks.
NOTE
The red indication can be seen when the
door-lock knob is unlocked.
Operation from outside
To lock the rear and front pa ...
PID/Data Monitor Inspection [Bcm]
1. Connect the M-MDS (IDS) to the DLC-2.
2. After the vehicle is identified, select the following items from the initialization
screen of the IDS.
a. Select “DataLogger”.
b. Select “Modules”.
c. Select “BCM/GEM”.
3. Select the applicable PID from the PID table.
4. Verify the PID da ...
Camshaft Position (CMP) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Visual Inspection
CAUTION:
When replacing the CMP sensor, make sure there is no foreign material on
it such as metal shavings. If it is installed with foreign material, the sensor
output signal will malfunction resulting from fluctuation in magnetic flux and
cause a deterioration i ...
